Home / 12,766.24-17,614.55-7,730.36

Finding the Fourth Proportional to 12,766.24, 17,614.55 and 7,730.36

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Solution

The fourth proportional to 12,766.24, 17,614.55 and 7,730.36 is: 10,666.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,766.24 : 17,614.55 = 7,730.36 : x
  2. Step 2: Convert to fraction form
    12,766.24/17,614.55 = 7,730.36/x
  3. Step 3: Cross multiply
    12,766.24x = 17,614.55 × 7,730.36
  4. Step 4: Simplify right side
    12,766.24x = 136,166,824.26
  5. Step 5: Solve for x
    x = 136,166,824.26/12,766.24
  6. Step 6: Final answer
    x = 10,666.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.